7251227 has 2 divisors, whose sum is σ = 7251228. Its totient is φ = 7251226.

The previous prime is 7251221. The next prime is 7251239. The reversal of 7251227 is 7221527.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7251227 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7251196 and 7251205.

It is not a weakly prime, because it can be changed into another prime (7251221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3625613 + 3625614.

It is an arithmetic number, because the mean of its divisors is an integer number (3625614).

Almost surely, 2^7251227 is an apocalyptic number.

7251227 is a deficient number, since it is larger than the sum of its proper divisors (1).

7251227 is an equidigital number, since it uses as much as digits as its factorization.

7251227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 26.

The square root of 7251227 is about 2692.8102421077. The cubic root of 7251227 is about 193.5547499572.

The spelling of 7251227 in words is "seven million, two hundred fifty-one thousand, two hundred twenty-seven".